Other Audio Problems - Pioneer VSX-AX4ASi-S Operating Instructions Manual

Additional information

Other audio problems

Symptom
Broadcast stations cannot be
selected automatically, or there is
considerable noise in radio
broadcasts.
A multichannel DVD source
appears to be downmixed to 2
channels during playback.
Noise is output when scanning a
DTS CD.
When playing a DTS format LD
there is audible noise on the
soundtrack.
Can't record audio.
Recorded audio is different from
the current source, or inaudible.
Subwoofer output is very low.
Everything seems to be set up
correctly, but the playback sound
is odd.
The PHASE CONTROL feature
doesn't seem to have an audible
effect.
Noise or hum can be heard even
when there is no sound being
input.
There seems to be a time lag
between the speakers and the
output of the subwoofer.
The maximum volume available
(shown in the front panel display)
is lower than the +12dB
maximum.
Remedy
For FM broadcasts
• Fully extend the FM wire antenna, adjust the position for best reception and secure to a wall, etc.
• Use an outdoor antenna for better reception (see page 20).
For AM broadcasts
• Adjust the position and direction of the AM antenna.
• Use an outdoor antenna for better reception (see page 20).
• Noise may be caused by interference from other equipment, such as a fluorescent light, motor, etc.
Switch off or move the other equipment, or move the AM antenna.
• Make sure that the multichannel analog inputs are selected (see Selecting the multichannel analog inputs
on page 53).
• This is not a malfunction of the receiver. The scan function of your player alters the digital information,
making it unreadable, resulting in noise being output. Lower the volume when scanning.
• Make sure that the input signal type is set to DIGITAL (see Choosing the input signal on page 30).
• You can only make a digital recording from a digital source, and an analog recording from an analog
source.
• For digital sources, make sure that what you're recording isn't copy protected.
• Check that the OUT jacks are properly connected to the recorders input jacks (see Connecting analog
audio sources on page 16).
• The RECOUT source is set to an input source other than the source you're listening to. Select RECOUT
SOURCE to record the current input source (see Playing a different source when recording on page 68).
• To route more signal to the subwoofer, set it to PLUS or set the front speakers to SMALL (see Speaker
Setting on page 45).
• The speakers may be out of phase. Check that the positive/negative speaker terminals on the receiver are
matched with the corresponding terminals on the speakers (see Connecting the speakers on page 17).
• If applicable, check that the lowpass filter switch on your subwoofer is off, or the lowpass cutoff is set to
the highest frequency setting. If there is a PHASE setting on your subwoofer, set it to 0º (or depending on
the subwoofer, the setting where you think it has the best overall effect on the sound).
• Make sure the speaker distance setting is correct for all speakers (see Speaker Distance on page 46).
• Check that personal computers or other digital components connected to the same power source are not
causing interference.
• See Automatically setting up for surround sound (MCACC) on page 7 to set up your system again using
MCACC (this will automatically compensate for a delay in the subwoofer output).
• This is not a malfunction. If the levels in Channel Level on page 45 have been adjusted, the maximum
volume will change accordingly.
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